Citing electronic sources can be complicated. Below are URL's to help you when working with MLA Style, APA Style, CBE Style, or Chicago Style of documentation. These Web sites present information on how to cite electronic media and focus on frequently asked questions about the various styles.
MLA (Modern Language Association) is used primarily in the areas of English, foreign languages, and some other humanities.
APA (American Psychological Association) is used primarily in the areas of psychology and some other social sciences.
CBE (Council of Biology Editors) is used primarily in the area of natural and applied sciences. Since the name change from Council of Biology Editors to Council of Science Editors in 2000, the documentation style is sometimes referred to as CSE.
Chicago Style is recommended by The Chicago Manual of Style and is used primarily in history, art, and other humanities.
Other Good Resources:
www.bedfordstmartins.com/online/citex.html (Good for all four styles)
http://owl.english.purdue.edu/handouts/print/research/r_mla.html (MLA Style, plus many good links)
http://owl.english.purdue.edu/handouts/print/research/r_apa.html (APA Style, plus many good links)
www.ipl.org (Internet Public Library--provides several reputable links for style, writing guides, citing electronic sources, etc.)